Okay so when booting my laptop it shows the windows boot manager error 0xc00000e9. Since my laptop was sent to me by mail, I don’t have the Windows Vista installation CD and I´m not in the position to buy one either (money, it costs a lot to get one here in Mexico).
I made a recovery disc in a bootable USB and when it shows me the system recovery options, I cannot choose any OS, because there's none listed.

I have read somewhere that I could download the service pack from Microsoft and that´s it, but how to I use it? Or can I try to use a driver provided form Lenovo support? I´m using my brothers laptop that has Windows XP

You can download the Ubuntu Live CD from http://www.ubuntu.com/download/desktop . Select 12.04 (32-bit version), and then on the next page go to the bottom and select "Not now, take me to the download".

Aaaaand i got until the part where i changed my directory to G:\boot (which is where my usb is located) but when i try to run BOOTSECT.EXE/NT60 C:
it says "Bootsect.exe is not recognized as an internal or external command, operable program or batch file." What do i do now?

Are you using your recovery USB? Then maybe it uses a different bootloader system, i don't know. Try with the Windows 7 ISO download and burn it to a DVD/create a bootable USB with my instructions there.

Or maybe you could just open the ISO with 7-Zip, and extract the \boot directory to somewhere in your USB, say G:\isoBoot, and then do the same but from cd G:\isoBoot.

I have a copy of Vista Home Basic 32-bit iso which I am placing on my dropbox public folder. If the OP will email me a request I will email him the link to it. My email addy is in my profile. Offer good for 2-weeks. Then I will free up the space. File size is 2.52GB

Hmmm seems to be uploading at only 60kBps so it will be a while, 12 hr?, before it is available.